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The Paccar Exhaust Gas Recirculation (EGR) Control Valve directs exhaust gas flow within the engine’s emissions system. As engine conditions change, the valve adjusts how much exhaust is routed back into the intake stream. This adjustment follows commands from the engine control system and responds automatically to operating inputs. The valve opens and closes repeatedly while the engine is running. Its movement affects combustion behavior without driver involvement. Within the emissions process, the Paccar 2339622 regulates exhaust gas routing based on engine demand.
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